General analytical treatment of the graded interfaces with negative-index nanocomposites
2009 (English)In: Proceedings of the International Conference Days on Diffraction, DD 2009, IEEE Press, 2009, 56-60 p.Conference paper (Refereed)
We investigate the electrodynamics of structures incorporating nanocomposites with negative dielectric permittivity and magnetic permeability, the popular 'left-handed metamaterials'. We obtain analytical solutions to the Helmholtz equation for gradient-index interfaces between the positive and negative index part. We derive expressions for the field intensity as well as for the transmission- and reflection-coefficients, assuming that the graded region across the interface is smaller than the operating wavelength. We then compare the analytical results with the numerical results obtained by the Transfer Matrix Method (TMM). The model allows for arbitrary frequency dependencies and lossy media.
Place, publisher, year, edition, pages
IEEE Press, 2009. 56-60 p.
Analytical results, Analytical solutions, Analytical treatment, Arbitrary frequencies, Field intensity, Graded interfaces, Gradient indexes, Left handed metamaterial, Lossy media, Negative dielectric, Negative-index, Numerical results, Operating wavelength, Diffraction, Helmholtz equation, Magnetic permeability, Metamaterials, Nanocomposites, Transfer matrix method
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-152406ScopusID: 2-s2.0-77958455175ISBN: 978-596510358-4OAI: oai:DiVA.org:kth-152406DiVA: diva2:750989
International Conference Days on Diffraction, DD 2009, 26 May 2009 through 29 May 2009, St. Petersburg, Russian Federation
QC 20140930. QC 201601282014-09-302014-09-262016-01-28Bibliographically approved